Zobrazeno 1 - 6
of 6
pro vyhledávání: '"G. I. Semkova"'
Publikováno v:
JETP Letters. 88:740-744
Transparent silica glasses doped with heat-resistant luminescent nanoparticles with Cr3+ ions in the “strong” octahedral crystal field at the sol stage have been synthesized through the direct sol-gel-glass transition. Their electron microscopy a
Autor:
G. E. Malashkevich, G. K. Glushonok, S. V. Serezhkina, P. P. Pershukevich, Gvidona P. Shevchenko, G. I. Semkova
Publikováno v:
Physics of the Solid State. 49:1891-1902
A sol-gel method is used to prepare GeO2-Eu2O3-Ag films in which the luminescence efficiency of Eu3+ ions during UV excitation is comparable to that in films activated by organic europium complexes. The luminescence spectra of these films are recorde
Publikováno v:
Physics of the Solid State. 46:1425-1431
Terbium-and (Ce, Tb)-containing glasses prepared using the direct sol-gel-glass transition are studied. It is shown that glasses doped with one activator contain two main types of optical centers, namely, isolated and complex centers, which are chara
Publikováno v:
Physics of the Solid State. 46:552-556
The spectral-luminescent properties of silica gel glasses coactivated by Ce4+ and Eu3+ ions are investigated. The structure of the glasses is studied using x-ray powder diffraction and small-angle neutron scattering. The inference is drawn that Ce4+-
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 77:291-294
The luminescence of Eu3+ ions implanted in ultradisperse diamond powders, activated by impregnating with a solution of Eu(NO3)3·6H2O and heat-treated at various temperatures, is studied. A multiple increase in the efficiency of excitation in the cha
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 74:388-391
Nanostructuring may impart new spectral luminescence properties to Ln-containing glasses untypical of disordered materials, which may considerably raise the competitiveness of the corresponding glass lasers and light transformers. Among the problems